Prayer Wheel is a Rare Relic. Its effect causes all normal fights to drop two card rewards instead of one.
After ending a normal non-elite/boss fight, it will give two separate card rewards. Both can be activated, effectively doubling the cards the player receives from normal combat. This choice functions just like a normal choice after combat, and functions as expected with Question Card and Singing Bowl.
This relic does not spawn beyond floor 48, excluding Endless mode.